code: def test_creation_with_ws_url(self) -> None:
      s = bcs.ClientSession(websocket_url="wsurl")
      assert s.connected is False
      assert s.document is None
      assert s._connection._arguments is None
      assert s._connection.url == "wsurl"
      assert isinstance(s.id, str)
      assert len(s.id) == 44
  
file_path: bokeh/tests/unit/bokeh/client/test_session__client.py
imports: from __future__ import annotations
  import pytest
  from unittest.mock import MagicMock, patch
  import bokeh.client.session
label_desc: Use image node_id 3 for calling the Test_ClientSession obj's underlying member method code with example usage: obj.test_creation_with_ws_url() without return types